SHE PROVED THAT MOST OF THE UNIVERSE IS INVISIBLE Vera Rubin carefully studied how galaxies rotate and discovered something surprising-they were spinning too fast. Her research showed that an unseen force, now called dark matter, must be holding them together. Even when her ideas were questioned, she continued her work with patience and courage, changing astronomy forever. ◆ WHY READ THIS BOOK? - Discover what dark matter is - Learn how scientists study galaxies - Understand why evidence matters - Be inspired to explore the unknown BORN: 1928 - Studied galaxy rotation - Provided evidence for dark matter - Advocate for women in science - Inspired modern cosmology
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